82
TROUBLESHOOTING GUIDES (Continued)
Is video signal input into pin
!
and
2
of IC151
YES
NO
A.
Is 9V supplied at pin
6
of IC151
YES
NO
Is signal output from pin
4
of IC151
YES
NO
Check IC601 pin
M
Tuner mode: H
Line mode : L
NO
YES
Is 5V suppiled to pin
y
and
]
of IC301
Check PCB pattern
Is signal input into pin
o
of
IC301
YES
NO
Is signal output from pin
I
of
IC301
YES
NO
Check IC601
YES
Check Power circuit.
Change IC151
Is signal Input into pin
8
of ICS01
YES
NO
Is signal output from pin
6
of ICS01
YES
NO
RF out
YES
Check IC301 to pin
q
EE mode : L
PB mode : H
Check PCB pattern
and ICS01
Check OSD circuit
Line out
Check power
circuit
NO
High
Check IC601
Change IC301
Low
Check PIF circuit and
LINE IN JACK
EE MODE Picture NG
VIDEO CIRCUIT
Summary of Contents for DV- K504N-SJ
Page 35: ...34 AC001 K584NZ SJ M K584NZ SG M only...
Page 36: ...35...
Page 37: ...36...
Page 38: ...37...
Page 39: ...38...
Page 60: ...59 ELECTRICAL ADJUSTMENTS Fig 1 Circuit Board Location...
Page 92: ...91 INTERCONNECT WIRING DIAGRAM K584N K484N K384N K284N...
Page 93: ...92 POWER SUPPLY SCHEMATIC DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 95: ...94 2HD HEAD AMP SCHEMATIC DIAGRAM K384N K284N K304N...
Page 96: ...95 4HD HEAD AMP SCHEMATIC DIAGRAM K584N K484N K504N...
Page 97: ...96 VIDEO AUDIO SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 98: ...97 PIF INPUT SELECTOR SCHEMATIC DIAGRAM 9V USE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 100: ...99 TIMER SYSCON SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 101: ...100 POWER SUPPLY BLOCK DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 103: ...102 2HD HEAD AMP BLOCK DIAGRAM K384N K284N K304N...
Page 104: ...103 4HD HEAD AMP BLOCK DIAGRAM K584N K484N K504N...
Page 105: ...104 VIDEO AUDIO BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 106: ...105 PIF INPUT SELECTOR BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 109: ...108 MAIN PCB 2HEAD 4HEAD...
